Articulating arm



FIG. 1 is a front, right-side perspective view of an articulating arm;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a front, right-side perspective view thereof shown in a lowered position.

The broken lines in FIGS. 1-8 illustrate portions of the articulating arm that form no part of the claimed design. 

CLAIM The ornamental design for an articulating arm, as shown and described. 